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Best media for long term storage - Taiyo yuden or TDK scratchproof?
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Newbie
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1. March 2007 @ 08:50 |
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Ok, I would appreciate your guys opinions on this, its a fairly simple question.
Which blank DVD media would be better for long term storage of data? TDK Scratchproof or Taiyo Yuden, or maybe some other media you would recommend?
The DVD's are stored vertically in one of those metal dvd carry cases.
Basically i want the data to be as safe as possible and still be accessible for as long as possible!
Thankyou :-)
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Junior Member
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1. March 2007 @ 10:27 |
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Taiyo Yuden will be the best for long term quality. DO NOT get TDK. Instead get Verbatim if you can.
1st choice: TY, 2nd choice: Verbatim.
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AfterDawn Addict
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1. March 2007 @ 10:28 |
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if you're storing your disks in these boxes you are doing it the right way! I have plenty of those boxes and categorized for easy retrieval. If you are asking which is a top notch media to use then stick with the MIJ rule (Made In Japan).. or just use Verbatim.... top notch media but made in Taiwan/Singapore and the only exception to the MIJ rule. I strictly use Taiyo Yuden and use the storage box above!
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Newbie
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1. March 2007 @ 10:46 |
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Thanks guys.
I figured the tdk scratchproof would fare better becuase of the scratchproof coating and i have found dvds scratch fairly easily.
yes IHoe, i use a case like that. im a bit careless and leave things lying around, they would probably end of broke in one of those cloth cases ;)
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JoeRyan
Senior Member
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1. March 2007 @ 12:42 |
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If the discs are prone to multiple uses and potential scratches, your first choice should be Verbatim archival discs with the double alloy, then TDK (if your drive records to them properly), and lastly Taiyo Yuden. Only the first two of these three offer a hard coat. All three use azo-cyanine dye. There are some problems with types of hard coats, but the TDK Durabis uses a solvent-based spin coating that avoids most of the hard coat problems.
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Newbie
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1. March 2007 @ 13:13 |
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thanks a lot Joe, those verbatim ones look spot on, i didnt know they existed. they look to contain the best of both worlds.
for stuff like movie backups i'll use taiyo, if they get scratched its not the end of the world. but for stuff thats more important i feel i need that 'something extra'.
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Newbie
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1. March 2007 @ 13:47 |
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bummer, im in the UK and cant seem to find any of those verbatim gold 'ultralife' ones. dont think they have been released here yet.
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ricster
Member
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2. March 2007 @ 03:13 |
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JoeRyan
Senior Member
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2. March 2007 @ 03:51 |
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The gold CD-Rs are fine; but since gold reflects light less than silver alloy and was not part of the DVD design, the gold DVDs do not perform as well as other good DVDs in the market.
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ricster
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2. March 2007 @ 04:01 |
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Newbie
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2. March 2007 @ 04:07 |
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thanks for the info ricster. although i am a bit relunctant as i can not find any reviews or info on those delkin. well apart from this news article on cd freaks.
Joe, these were the verbatim ones you were referring to right?
http://www.verbatim.com/optical/archival/
Since they seem to have a gold layer, do these also not perform as good as the other dvds on the market? and what kind of performance issues are we talking about? burninig issues, data retrieval issues, speed issues?
And a question to anyone else, is the anti-tdk bias founded? was that just wgd9891's opinion or have there been more people having problems with TDK?
See, I saw this page and it puts TDK in the 'first class' category.
http://www.digitalfaq.com/media/dvdmedia.htm Although of course i realise the manufacturer codes are important as well.
many thanks for everyones time.
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Newbie
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2. March 2007 @ 04:14 |
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ricster, you replied that last one before i posted, i will take a look at that pdf, looks like it will be useful.
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ricster
Member
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2. March 2007 @ 04:41 |
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Well, no - it might not be good advice after all. Sounds like Joe disagrees with their findings. Admittedly that advice was from 2003.
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Member
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2. March 2007 @ 09:22 |
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Where did you get that storage box?
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Member
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2. March 2007 @ 10:23 |
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I have the same one and I got it from Merittline.
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JoeRyan
Senior Member
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7. March 2007 @ 15:25 |
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The Verbatim archival media (the ones in Smokee's link) use gold to stabilize the reflector layer and silver to achieve the proper reflectivity. Gold reflects less laser light than silver or silver alloy, and reflectivity is an important mechanical aspect of DVDs. Greater reflectivity increases dynamic range/contrast levels. Verbatim tries to achieve a balance between gold and silver to keep the reflectivity up. Pure gold reflectors have lower reflectivity, and although those discs are stable over time, their initial error rates are disappointing. The initial error rates are what I meant by "performance."
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ricster
Member
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7. March 2007 @ 21:29 |
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OK, I need to clarify this since I have some gold discs that are storing digital photos...
1) What do you mean by "initial error rate" ?
2) If I had a successful burn, do I need to check every photo to see that it's actually ok ?
3) Are you saying that, once burned, the gold discs are the most stable and hence offer the longest life ?
Sorry for all the questions but I like to understand.
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Newbie
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8. March 2007 @ 05:47 |
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thanks for the update Joe, and yes if someone could address ricsters questions as i would also like to know the answers.
i'm guessting you mean higher coaster rate by initial error rate?
im also guessing once the dvds have burned succesfully you should be in good standing?
for me, its still a toss up b/ween the verbatim gold and the tdk scratchproof and still not sure which ones to buy.
i found out you can buy verbatim gold in the uk, i emailed verbatim uk to ask and they gave me a website.
those delkin ones that ricster posted are about twice the price of the verbatim gold ones and at this stage im not sure if there any advanted to buying those over the verbatim.
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JoeRyan
Senior Member
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8. March 2007 @ 07:22 |
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1) High initial error rate means PIE or PIF errors higher than ideal. The maximum PIE errors should be no higher than 25 with an average of below 15; PIF errors should have a maxima of 2 with an ideal average below 1. Test results I have seen on gold DVD reflectors have an average PIE of around 50 to 70. (A "coaster" signifies a failed disc that is no good for anything but protection under a sweating beer mug.)
2) Once a disc is recorded, the "photos" are data. All you need to do is verify the integrity of the data rather than check every jpg file. Checking every jpg file is not a bad thing to do; it just takes a lot more time. (Just view the photo folder in thumbnail form to make a quick survey of file readability.)
3) Environmental tests indicate that the gold discs are not necessarily the longest lasting. The gold reflective layer's freedom from oxidation cannot overcome other factors such as bonding integrity, mechanical precision, or dye stability.
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